Weather on October 23
Sunnyvale, CA
55 Years of Data
Avg High
73°F
Avg Low
53°F
Warmest
2017
72°F avg
Coldest
1971
56°F avg
About This Date
October 23rd in Sunnyvale, CA typically brings pleasant fall weather, with average highs around 73°F and lows near 53°F. Over 55 years of records, the warmest October 23rd was in 2017 (72°F average), while the coldest was 1971 (56°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 20% of October 23rd dates historically, with the wettest October 23rd recording 1.91" of rain. The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for October 23rd in Sunnyvale, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 54° | 60° | — | — |
| 2024 | 82° | 50° | 66° | — | — |
| 2023 | 79° | 60° | 69° | 0.1" | — |
| 2022 | 71° | 47° | 59° | — | — |
| 2021 | 69° | 52° | 60° | 0.03" | — |
| 2020 | 74° | 55° | 64° | — | — |
| 2019 | 85° | 56° | 70° | — | — |
| 2018 | 66° | 51° | 59° | — | — |
| 2017warmest | 88° | 56° | 72° | — | — |
| 2016 | 69° | 51° | 60° | — | — |
| 2015 | 75° | 54° | 64° | — | — |
| 2014 | 74° | 57° | 65° | — | — |
| 2013 | 64° | 53° | 59° | — | — |
| 2012 | 65° | 51° | 58° | 0.3" | — |
| 2011 | 85° | 55° | 70° | — | — |
| 2010 | 66° | 50° | 58° | 0.28" | — |
| 2009 | 76° | 53° | 64° | — | — |
| 2008 | 85° | 53° | 69° | — | — |
| 2007 | 85° | 52° | 68° | — | — |
| 2006 | 77° | 52° | 64° | — | — |
| 2005 | 69° | 52° | 60° | — | — |
| 2004 | 65° | 51° | 58° | 0.18" | — |
| 2003 | 82° | 54° | 68° | — | — |
| 2002 | 59° | 54° | 56° | — | — |
| 2001 | 70° | 52° | 61° | 0.03" | — |
| 2000 | 77° | 45° | 61° | — | — |
| 1999 | 64° | 51° | 58° | — | — |
| 1998 | 64° | 51° | 58° | — | — |
| 1997 | 70° | 53° | 61° | — | — |
| 1996 | 70° | 54° | 62° | — | — |
| 1995 | 74° | 49° | 61° | — | — |
| 1994 | 78° | 50° | 64° | — | — |
| 1993 | 80° | 53° | 67° | — | — |
| 1992 | 83° | 53° | 68° | — | — |
| 1991 | 69° | 49° | 59° | — | — |
| 1990 | 75° | 53° | 64° | — | — |
| 1989 | 69° | 57° | 63° | 1.91" | — |
| 1988 | 67° | 56° | 61° | — | — |
| 1987 | 72° | 60° | 66° | 0.48" | — |
| 1986 | 72° | 55° | 63° | — | — |
| 1985 | 69° | 58° | 63° | — | — |
| 1984 | 75° | 50° | 63° | — | — |
| 1983 | 72° | 58° | 65° | — | — |
| 1982 | 77° | 64° | 71° | 0.08" | — |
| 1981 | 76° | 50° | 63° | — | — |
| 1980 | 78° | 53° | 66° | — | — |
| 1979 | 79° | 54° | 66° | — | — |
| 1978 | 87° | 50° | 69° | — | — |
| 1977 | 74° | 54° | 64° | — | — |
| 1976 | 66° | 50° | 58° | — | — |
| 1975 | 66° | 48° | 57° | — | — |
| 1974 | 67° | 51° | 59° | — | — |
| 1973 | 65° | 54° | 59° | 0.13" | — |
| 1972 | 74° | 60° | 67° | — | — |
| 1971coldest | 62° | 50° | 56° | 0.03" | — |
55 years of data from MOFFETT FED AIRFIELD